When disputed flags were first implemented, it simply said something like "disputed" in the flagging summary (the flagging history page accessible via one's profile page), both when I disputed someone else's flag, and when someone else disputed my flag.
Today, I disputed someone else's flag, and it looks like this in my flagging summary:
AFAICT, that "moderator" was me. There's no other disputed flag for that particular topic, and invalid flag is the description assigned to the "disputing flag".
It doesn't make sense to display the description like this to me. In improving the description of disputed flags they apparently were broken for half the users, since the same description appears both for the "disputing" and the "disputed" user. And that's the bug. Either make the description neutral again, as it was before, or distinguish between disputing and disputed user's flag in the flagging summary.
